Implementing Boolean logic in Python
Lesson details
Learning outcome
I can use Boolean logic in a Python program.
Key learning points
- Boolean expressions give results that can be used in selection and iteration.
- Boolean logic is used in selection to test conditions.
- Complex decisions can be constructed with Boolean expressions.
Keywords
Boolean operator - an operator used in a Boolean expression, for example AND, OR and NOT
Logical operator - another name for a Boolean operator
Program flow - the order in which the instructions in a program are executed
Common misconception
Boolean logic is only used in logic circuits and logic gates.
The three fundamental Boolean operators are AND, OR and NOT. These are used in programs to perform selection and control program flow. In Python, these are written in words as: and, or, not.
Teacher tip
Boolean statements are based on human language and can be articulated to understand when they are true. Expanding such statements into full sentences can help pupils appreciate how they are evaluated so that specific syntax of the programming language does not become a barrier to understanding.
Equipment
Pupils will need access to a device that can edit and run Python programs. Examples in this lesson use the RPF Code Editor https://oak.link/python-editor
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is a software program that allows you to build and test logic circuits called?
Q2.A is a picture used to represent a logical statement.
Q3.In logic gate simulator software, what is a bulb?
Q4.What gate is this?
Q5.The light bulb in this circuit is on. What are the values of A and B?
Q6.What can be used to help identify inputs in a circuit diagram?
Assessment exit quiz
6 Questions
Q1.Which of the following are arithmetic operators in Python?
Q2.What does a comparison operator evaluate to?
Q3.The order in which instructions are executed is called the .
Q4.A is another name for a Boolean operator.
Q5.In a Python program, what is used to make a decision about the program flow?
Q6.What type of operator is >=?
To help you plan your 10 computer science lesson on: Implementing Boolean logic in Python, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 10 computer science lesson on: Implementing Boolean logic in Python, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 4 computer science lessons from the Boolean logic unit, dive into the full secondary computer science curriculum, or learn more about lesson planning.